Catheter securement device with window

ABSTRACT

An anchor system for securing a catheter to a patient may include an anchor pad, which may include a lower surface, an upper surface, and a window extending through the anchor pad. The lower surface may include an adhesive layer to adhere the anchor pad to skin of the patient. The upper surface may include a catheter securement mechanism. The window may provide access to the skin of the patient for application of a topical skin adhesive at a catheter insertion site disposed within the window.

BACKGROUND OF THE INVENTION

A clinician may insert a vascular access device into a blood vessel of apatient to infuse fluid and/or draw blood. The vascular access devicemay first penetrate skin of the patient at an insertion site, and whenthe vascular access device is properly placed within the blood vessel,the clinician may apply a skin adhesive at the insertion site to securethe vascular access device. In order to apply the skin adhesive at theinsertion site, the clinician may hold the inserted catheter in one handand use another hand to open an adhesive container and apply the skinadhesive. After applying the skin adhesive to the insertion site, theclinician may hold the vascular access device while the skin adhesivedries. Securing the vascular access device via the skin adhesive maythus be a difficult and messy process that may result in dislodgement ofthe vascular access device, ineffective application of the skin adhesivethrough application of too much or too little of the skin adhesive, oradhering of the skin adhesive to a hand or glove of the clinician.Accordingly, there is a need in the art for devices, systems, andmethods that provide securement of the vascular access device in acontrolled, safe manner.

BRIEF SUMMARY OF THE INVENTION

The present disclosure relates generally to devices, systems, andassociated methods to secure and stabilize a vascular access deviceinserted into a blood vessel of a patient. In some embodiments, ananchor system to secure the vascular access device to the patient mayinclude an anchor pad, which may include a lower surface, an uppersurface, and a window extending through the anchor pad. In someembodiments, the lower surface may include an adhesive layer to adherethe anchor pad to skin of the patient. In some embodiments, the windowmay provide access to the skin of the patient for application of atopical skin adhesive at an insertion site of the vascular accessdevice, the insertion site being disposed within the window.

In some embodiments, the skin adhesive may be disposed within the windowto secure the vascular access device in place at the insertion site. Insome embodiments, the window may enclose the insertion site, which mayfacilitate controlled and contained application of the skin adhesive atthe insertion site. In further detail, the skin adhesive may contact theskin of the patient within the window, but may be prevented ordiscouraged from contacting skin of the patient outside of the window,reducing a likelihood of a messy application of the skin adhesive. Insome embodiments, the skin adhesive may provide localized stabilizationof the vascular access device at the insertion site and/or may provide aseal around the vascular access device at the insertion site, which mayprevent infection. The skin adhesive may also increase an indwell timefor the vascular access device.

In some embodiments, a securement mechanism may be disposed on the uppersurface of the anchor pad and may secure the vascular access device tothe anchor pad. In some embodiments, the securement mechanism mayinclude an adhesive well. In some embodiments, the securement mechanismmay include a retainer capable of receiving a portion of the vascularaccess device. In some embodiments, the retainer may be coupled to theupper surface.

In some embodiments, the anchor pad may include a release liner that maycover the adhesive layer and may be removed prior to adhering the anchorpad to the skin of the patient. In some embodiments, the anchor pad mayinclude a slot that may extend from the window to an exterior of theanchor pad. The slot may allow the vascular access device to be insertedinto the patient prior to positioning and securing the anchor pad to theskin of the patient.

In some embodiments, a method of securing the vascular access device mayinclude providing the anchor pad and/or the securement mechanism. Insome embodiments, the method may include inserting the vascular accessdevice into the patient at the insertion site. In some embodiments, themethod may include adhering the anchor pad to the skin of the patientvia the adhesive layer. In some embodiments, the method may includesecuring a portion of the vascular access device within the securementmechanism. In some embodiments, the method may include applying the skinadhesive at the insertion site and/or proximate the insertion sitewithin the window after the vascular access device is inserted at theinsertion site and after the anchor pad is adhered to the skin of thepatient.

In some embodiments in which the anchor pad includes the slot, adheringthe anchor pad to the skin of the patient via the adhesive layer mayinclude placing the window around a vascular access device via the slot,the vascular access device having been previously inserted at theinsertion site. In some embodiments, adhering the anchor pad to the skinof the patient via the adhesive layer may include removing the releaseliner covering the adhesive layer.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE FIGURES

In order that the manner in which the above-recited and other featuresand advantages of the invention will be readily understood, a moreparticular description of the devices, systems, and associated methodsto secure and stabilize a vascular access device briefly described abovewill be rendered by reference to specific embodiments thereof, which areillustrated in FIGS. 1-4. Understanding that these Figures depict onlytypical embodiments and are not, therefore, to be considered to belimiting of its scope, the invention will be described and explainedwith additional specificity and detail through the use of theaccompanying Figures in which:

FIG. 1A is a top view of an example anchor system, illustrating anexample catheter coupled to the anchor system, according to someembodiments;

FIG. 1B is a lower perspective view of the anchor system of FIG. 1A,according to some embodiments;

FIG. 1C is another lower perspective view of the anchor system of FIG.1A, according to some embodiments;

FIG. 1D is another lower perspective view of the anchor system of FIG.1A, according to some embodiments;

FIG. 2A is another top view of the anchor system of FIG. 1A, accordingto some embodiments;

FIG. 2B is another top view of the anchor system of FIG. 1A, accordingto some embodiments;

FIG. 2C is another top view of the anchor system of FIG. 1A, accordingto some embodiments;

FIG. 2D is another top view of the anchor system of FIG. 1A, accordingto some embodiments;

FIG. 2E is another top view of the anchor system of FIG. 1A, accordingto some embodiments;

FIG. 3A is another top view of the anchor system of FIG. 1A, accordingto some embodiments;

FIG. 3B is another top view of the anchor system of FIG. 1A, accordingto some embodiments; and

FIG. 4 is a block diagram of an example method of securing a catheter,according to some embodiments.

DETAILED DESCRIPTION OF THE INVENTION

The presently preferred embodiments of the described invention will bebest understood by reference to the Figures, wherein like parts aredesignated by like numerals throughout. It will be readily understoodthat the components of the present invention, as generally described andillustrated in the Figures in the present disclosure, could be arrangedand designed in a wide variety of different configurations. Thus, thefollowing more detailed description of the embodiments, represented inFIGS. 1 through 4, is not intended to limit the scope of the invention,as claimed, but is merely representative of some embodiments of theinvention.

Referring to FIGS. 1A-1B, an example anchor system 10 for securing acatheter 12 to a patient is illustrated. It is understood, however, thatthe anchor system 10 may be utilized in connection with other vascularaccess devices, including, but not limited to, fluid supply and drainagelines, feeding tubes, chest tubes, scopes, connectors, adaptors,electrical wires and cables, and the like, any of which may be securedto the patient by the anchor system 10.

In some embodiments, the anchor system 10 may include an anchor pad 14,which may include various shapes and sizes. In some embodiments, theanchor pad 14 may include a lower surface 16, an upper surface 18, and awindow 20 extending through the anchor pad 14. In some embodiments, thelower surface 16 may include an adhesive layer 22 to adhere the anchorpad 14 to skin 24 of the patient.

In some embodiments, the upper surface 18 may include a cathetersecurement mechanism, such as, for example, a retainer or anothersuitable mechanism. In some embodiments, the retainer 26 may be coupledto the upper surface 18 and may be capable of receiving a portion of thecatheter 12. In some embodiments, the window 20 may provide access tothe skin 24 of the patient for application of a topical skin adhesive 27at an insertion site of the catheter 12, the insertion site beingdisposed within the window 20. In some embodiments, a catheter tubing ofthe catheter 12 may extend beneath the anchor pad 14, as illustrated inFIG. 1A, for example, into a blood vessel of the patient. In someembodiments, the retainer 26 may include a clip, clasp, clamp, snap,button, strap, Velcro® or any other suitable mechanism for securing theportion of the catheter 12 to the anchor pad 14. In some embodiments,the retainer 26 may allow selective coupling of the portion of thecatheter 12 to the anchor pad 14.

In some embodiments, the skin adhesive 27 may be disposed within thewindow 20 to secure the catheter 12 in place at the insertion site. Insome embodiments, the window 20 may enclose the insertion site, whichmay facilitate controlled and contained application of the skin adhesive27 at the insertion site. In further detail, the skin adhesive 27 maycontact the skin 24 of the patient within the window 20 and/or a portionof the anchor pad 14 proximate the window 20, but may be prevented ordiscouraged from contacting skin 24 of the patient outside of the window20, reducing a likelihood of a messy application of the skin adhesive27. In some embodiments, the skin adhesive 27 may provide localizedstabilization of the catheter 12 at the insertion site and/or mayprovide a seal around the catheter 12 at the insertion site, which mayprevent infection. The skin adhesive 27 may also increase an indwelltime for the catheter 12.

In some embodiments, the catheter 12 may be inserted into the patientprior to application of the skin adhesive 27 to the insertion site.Given the difficulty and usability challenges of holding the catheter 12in position while applying the skin adhesive 27 to the insertion site,it may be advantageous to provide a means of securement of the catheter12, such as the anchor pad 14 and the catheter securement mechanism,prior to application of the skin adhesive 27. Thus, in some embodiments,insertion of the catheter 12 and placement of the anchor pad 14 on theskin of the patient may occur prior to application of the skin adhesive27. The anchor pad 14 and the catheter securement mechanism mayfacilitate greater control and accuracy in placement of the skinadhesive 27 at the insertion site, reduce an amount of skin adhesive 27required, reduce a likelihood of a messy application of the skinadhesive 27, and reduce a risk of the catheter 12 becoming dislodged dueto unintentional movement during application of the skin adhesive 27.Further, the anchor pad 14 and the catheter securement mechanism mayeliminate a need for the clinician to hold the catheter 12 while theskin adhesive 27 dries, which may reduce a likelihood of the skinadhesive 27 bonding to a hand or glove of the clinician.

In some embodiments, an outer edge of the window 20 may be spaced apartfrom an outer edge of the anchor pad 14. In further detail, in someembodiments, the window 20 may be inset from the outer edge of theanchor pad 14. In some embodiments, the securement mechanism may bealigned with the window 20 such that the catheter 12 may extendoutwardly from the securement mechanism to the window 20. In someembodiments, the catheter 12 may extend through a middle portion of thewindow 20.

In some embodiments, the skin adhesive 27 may include cyanoacrylate oranother suitable glue or bonding material. In some embodiments,cyanoacrylate may include liquid monomers and may polymerize on contactwith the skin, creating a flexible and/or semi-rigid layer. In these andother embodiments, liquid cyanoacrylate may be applied at the insertionsite within the window 20 and may cure to a solid form within a periodof seconds.

In some embodiments, the adhesive layer 22 may include any type or formof adhesive that is suitable for use with the methods and embodimentsdiscussed in the present disclosure. In some embodiments, the adhesivelayer 22 may be a spray-on adhesive, adhesive film, or any other type ofadhesive application. In some embodiments the adhesive layer 22 may beformed of or include a polymer-based pressure sensitive adhesive. Forexample, when a polymer-based pressure sensitive adhesive is used in theadhesive layer 22, a bond may formed between the adhesive layer 22 andthe skin 24 of the patient by applying light pressure between anchor pad14 and the skin 24. In some embodiments, the adhesive layer 22 mayinclude a slight liquid carrier that facilitates bonding with the skin24. In some embodiments, the adhesive layer 22 may include a single-useglue, such that the adhesive layer 22 loses its adhesive properties onceremoved from the skin 24. In some embodiments, the adhesive layer 22 mayinclude an antimicrobial agent to aid in maintaining sterility of theinsertion site. In some embodiments, the adhesive layer 22 may include amultiple-use glue, which may allow the anchor pad 14 to be appliedrepeatedly.

In some embodiments, the window 20 may provide access to skin 24 of thepatient for application of the skin adhesive 27 and/or a cleaning ordisinfection agent at the insertion site of the catheter 12. In someembodiments, the cleaning agent may be disposed within the window 20 andmay contact the skin 24 of the patient within the window 20. In someembodiments, the skin adhesive 27 and/or the cleaning agent may beprevented or discouraged from contacting the skin 24 of the patientoutside of the window 20 and/or beyond an outer edge of the anchor pad14. In some embodiments, the skin adhesive 27 and/or the cleaning agentmay be wicked or pulled into the anchor pad 14 from the window 20 butmay not contact the skin 24 beyond the outer edge of the anchor pad 14.

In some embodiments, a material of the anchor pad 14 may absorb aportion of the skin adhesive 27 and/or the cleaning agent and preventspreading of the skin adhesive 27 and/or cleaning agent beyond the outeredge of the anchor pad 14. In some embodiments, the skin adhesive 27and/or the cleaning agent may be contained within the window 20. In someembodiments, the anchor pad 14 may include any suitable medical gradematerial. In some embodiments, in addition to the adhesive layer 22, theanchor pad 14 may include a cloth layer and/or a foam layer. In someembodiments, the cloth layer may include the upper surface 18. In someembodiments, the foam layer may include the upper surface 18. In someembodiments, the cloth layer may be non-woven or woven. In someembodiments, the anchor pad 14 may include one or more antimicrobialagents, which may be applied in a film or otherwise.

In some embodiments, the retainer 26 may be coupled to the upper surface18 through any number of means, such as, for example, mounting,attaching, etc. In some embodiments, the retainer 26 may be coupled tothe upper surface 18 by means of cyanoacrylate or another bondingmaterial. The retainer 26 may increase a force necessary to dislodge thecatheter 12 at the insertion site. In some embodiments, the retainer 26may include any mechanism configured to engage and secure the catheter12 within the retainer 26. In some embodiments, the retainer 26 mayprevent movement of the catheter 12 in a distal and/or proximaldirection. For example, the retainer 26 may have at least one abutment.In some embodiments, the retainer 26 may include a channel shaped toreceive a catheter hub or another portion of the catheter 12. In someembodiments, the retainer 26 may be similar to or include any suitableretainer of a StatLock® external stabilization device (Bard Medical) oranother external stabilization device.

In some embodiments, the retainer 26 may be constructed as a singlepiece or from multiple different pieces. For example, the entireretainer 26 may be formed by injection molding or components of theretainer 26 may be formed separately and thereafter joined together. Insome embodiments, the retainer 26 or portions thereof may be rigid orflexible. The retainer 26 may be constructed of one or more materials,which may include, for example, plastics, polymers or composites such aspolypropylene, polyethylene, polycarbonate, polyvinylchloride,acrylonitrile butadiene styrene, nylon, olefin, acrylic, polyester, aswell as moldable silicon, thermoplastic urethane, thermoplasticelastomers, thermoset plastics, or another suitable material.

In some embodiments, the anchor pad 14 may include a slit or slot 32that may extend from the window 20 to an exterior of the anchor pad 14.In some embodiments, the slot 32 may allow the catheter 12 to beinserted into the patient prior to positioning and securing the anchorpad 14 to the skin 24 of the patient. In some embodiments, the anchorsystem 10 may be placed over the catheter 12, which may be secured tothe retainer 26 via a snap mechanism or similar mechanism. In theseembodiments, the catheter 12 may be inserted at the insertion site priorto positioning and securing the anchor pad 14 to the patient withoutpresence of the slot 32.

Referring now to FIG. 1B, in some embodiments, the anchor pad 14 mayinclude a release liner 28 that may cover the adhesive layer 22 and maybe removed prior to adhering the anchor pad 14 to the skin 24 of thepatient. In some embodiments, the release liner 28 may include anymaterial or combination of materials that permit temporary bondingbetween the release liner 28 and the adhesive layer 22. In someembodiments, the release liner 28 may be divided into multiple pieces toease attachment of the anchor pad 14 to the skin 24 of the patient. Insome embodiments, the release liner 28 may include an aperturecorresponding to the window 20, as illustrated in FIG. 1B, or therelease liner 28 may cover the window 20. In some embodiments, therelease liner 28 may include paper, plastic, or another suitablematerial. In some embodiments, the release liner 28 may include one ormore antimicrobial agents.

In some embodiments, the release liner 28 may include one or morepull-tabs 30 to facilitate removal of the release liner 28 from theadhesive layer 22. In some embodiments, the release liner may be removedby pulling or peeling the release liner 28 in a distal direction, in aproximal direction, or toward one or more sides of the anchor pad 14. Insome embodiments, the pull-tabs 30 may be designed in a variety ofconfigurations and need not be disposed along a centerline of the anchorpad 14.

Referring now to FIG. 1C, in some embodiments, the window 20 maypartially enclose the insertion site, which may facilitate controlledand contained application of the skin adhesive 27 at the insertion siteand allow easy attachment of the catheter 12 to the retainer 26. In someembodiments, a distal portion of the window 20 may be closed and/or aproximal portion of the window 20 may be open. In some embodiments, thewindow 20 may extend beneath the retainer 26. In some embodiments, anedge of the window 20 may extend to the outer edge of the anchor pad 14.

Referring now to FIG. 1D, in some embodiments, the release liner may beremoved by pulling or peeling the release liner 28 toward one or moresides of the anchor pad 14. The release liner 28 of FIG. 1D is dividedinto two pieces, according to some embodiments. In some embodiments, therelease liner 28 may be divided into any number of pieces.

As discussed previously in the present disclosure, the retainer 26 mayinclude any mechanism configured to engage and secure the catheter 12within the retainer 26. In some embodiments, the retainer 26 may besimilar to or include any suitable retainer of a StatLock® externalstabilization device (Bard Medical) or another external stabilizationdevice. FIG. 1A illustrates a peripheral IV catheter coupled to aparticular retainer 26 similar to the retainer of the StatLock® IVSelect Stabilization Device (Bard Medical). However, it is understoodthat the anchor system 10 may be utilized in connection with varioustypes of catheters and/or retainers, a few of which are illustrated inFIGS. 2A-2E. The anchor system 10 may be utilized in connection with,for example, peripheral IV catheters, central venous catheters (CVCs),peripherally inserted central catheters (PICCs), hemodialysis catheters,arterial catheters, pediatric IV catheters, neonate IV catheters,integrated IV catheters, non-integrated IV catheters, etc.

FIG. 2A illustrates the anchor pad 14 coupled to a particular retainer26 configured to secure a neonate catheter and similar to the retainerof the StatLock® IV Ultra Neonate Stabilization Device (Bard Medical),according to some embodiments.

FIG. 2B illustrates the anchor pad 14 coupled to a particular retainer26 configured to secure a pediatric catheter and similar to the retainerof the StatLock® IV Ultra Pediatric Stabilization Device (Bard Medical),according to some embodiments.

FIG. 2C illustrates the anchor pad 14 coupled to a particular retainer26 configured to secure a hemodialysis catheter and similar to theretainer of the StatLock® IV Dialysis Stabilization Device (BardMedical), according to some embodiments.

FIG. 2D illustrates the anchor pad 14 coupled to a particular retainer26 configured to secure a PICC and similar to the retainer of theStatLock® PICC Plus Stabilization Device (Bard Medical), according tosome embodiments.

FIG. 2E illustrates the anchor pad 14 coupled to a particular retainer26 similar to the retainer of the StatLock® Arterial SelectStabilization Device (Bard Medical), according to some embodiments. Insome embodiments, the window 20 illustrated in any of FIGS. 2A-2E mayenclose the insertion site, as illustrated, for example, in FIG. 1B. Insome embodiments, the window 20 illustrated in any of FIGS. 2A-2E maypartially enclose the insertion site, as illustrated, for example, inFIG. 1C or 1D.

Referring now to FIG. 3A-3B, in some embodiments, the anchor pad 14 ofthe anchor system 10 may include a recess or well 34. In these and otherembodiments, including embodiments illustrated in FIGS. 2A-2E, theanchor pad may include the slit or slot 32 and/or the adhesive layer 22.In some embodiments, the well 34 may be an indentation in the anchor pad14. In other embodiments, the well 34 may extend entirely through thepad, similar to the window 20. In some embodiments, the well 34 may havea similar shape and/or size as a portion of the catheter 12, which mayinclude one or more stabilization platforms or wings 36. In someembodiments, the well 34 may match a foot print of the portion of thecatheter 12 in shape and size.

In some embodiments, another adhesive layer 38 may be disposed withinthe well. For example, the adhesive layer 38 may be disposed at a bottomof the well 34. In embodiments in which the well 34 extends through theanchor pad 14, a substrate (not illustrated) may support the adhesivelayer 38. In some embodiments, the portion of the catheter 12 disposedwithin the well 34 may be pressed into contact with the adhesive layer38 to secure the portion of the catheter 12 to the anchor pad 14. Insome embodiments, the well 34 may be proximate the window 20. In someembodiments, the well 34 may be spaced apart from the window 20.

In some embodiments, the catheter 12 may be integrated, as illustratedin FIGS. 3A-3B. For example, the catheter 12 may include the BD NEXIVA™Closed IV Catheter (Becton, Dickinson and Company), the BD SAF-T-INTIMA™Closed IV Catheter (Becton, Dickinson and Company), or anotherintegrated catheter 12.

Referring now to FIG. 4, in some embodiments, a method 50 of securing acatheter may begin at block 52. At block 52, an anchor pad may beprovided. The anchor pad may include or correspond to the anchor pad 14discussed with respect to any of the previous FIGS. 1-3. Block 52 may befollowed by block 54.

At block 54, a catheter securement mechanism may be provided. In someembodiments, the catheter securement mechanism may include a retainerand/or an adhesive well. The retainer and the adhesive well may includeor correspond to the retainer 26 and the well 34, respectively,discussed with respect to any of the previous FIGS. 1-3. In someembodiments, the retainer may be coupled to the anchor pad. Block 54 maybe followed by block 56.

At block 56, a catheter may be inserted into a patient at an insertionsite. The catheter may include or correspond to the catheter 12discussed with respect to any of the previous FIGS. 1-3. In someembodiments, once a distal tip of the catheter is properly placed into ablood vessel of the patient and an introducer needle is withdrawn fromthe blood vessel and the distal tip, the catheter may be left in placeto provide intravenous access to the patient. Block 56 may be followedby block 58.

At block 58, the anchor pad may be adhered or attached to the skin ofthe patient via an adhesive layer disposed on a lower surface of theanchor pad. The adhesive layer may correspond to the adhesive layer 22discussed with respect to any of the previous FIGS. 1-3. In someembodiments in which the anchor pad includes a slot, which maycorrespond to the slot 32 discussed with respect to FIG. 1A-1B, adheringthe anchor pad to the skin of the patient via the adhesive layer mayinclude placing an window of the anchor pad around the catheter via theslot, the catheter having been previously inserted at the insertionsite. In some embodiments, adhering the anchor pad to the skin of thepatient via the adhesive layer may include removing a release linercovering the adhesive layer. Block 58 may be followed by block 60.

At block 60, a portion of the catheter may be secured within thecatheter securement mechanism. Block 60 may be followed by block 62.

At block 62, a skin adhesive may be applied at the insertion site and/orproximate the insertion site within the window. The skin adhesive maycorrespond to the skin adhesive 27 discussed with respect to any of theprevious FIGS. 1-3. In some embodiments, the skin adhesive may beapplied after the catheter is inserted at the insertion site and afterthe anchor pad is adhered to the skin of the patient. Block 62 may befollowed by block 64.

At block 64, a securement dressing may be applied over top of the anchorpad, the catheter securement mechanism, and the catheter. In someembodiments, the securement dressing may include an antimicrobial agent,such as, for example, TEGADERM™ or CHLORASHIELD™.

Although illustrated as discrete blocks, various blocks may be dividedinto additional blocks, combined into fewer blocks, or eliminated,depending on the desired implementation. Furthermore, the order of theblocks may be changed. The present invention may be embodied in otherspecific forms without departing from its structures, methods, or otheressential characteristics as broadly described herein and claimedhereinafter. The described embodiments and examples are to be consideredin all respects only as illustrative, and not restrictive. The scope ofthe invention is, therefore, indicated by the appended claims, ratherthan by the foregoing description. All changes that come within themeaning and range of equivalency of the claims are to be embraced withintheir scope.

The invention claimed is:
 1. A method of securing a catheter,comprising: inserting a catheter into a patient at an insertion site;after inserting the catheter into the patient at the insertion site,adhering an anchor pad to skin of the patient via an adhesive layer,wherein the anchor pad comprises a lower surface, an upper surface, andan opening extending through the anchor pad and from an outer edge ofthe anchor pad, wherein the lower surface comprises the adhesive layerto adhere the anchor pad to the skin of the patient, wherein the anchorpad comprises a retainer on the upper surface of the anchor pad andextending across the opening, wherein the anchor pad is adhered to theskin of the patient via the adhesive layer such that the opening extendsbeyond the insertion site; securing a portion of the catheter within theretainer; and after adhering the anchor pad to the skin of the patientvia the adhesive layer and after securing the portion of the catheterwithin the retainer, applying a liquid adhesive within the opening atthe insertion site such that the liquid adhesive contacts the anchor padand the skin of the patient within the window.
 2. The method of claim 1,wherein the anchor pad further comprises a slot, wherein the slotextends from the opening to the outer edge of the anchor pad, whereinadhering the anchor pad to the skin of the patient via the adhesivelayer comprises placing the opening around the catheter via the slot. 3.The method of claim 1, further comprising curing the liquid adhesive toform a flexible or semi-rigid layer.
 4. The method of claim 1, whereinadhering the anchor pad to the skin of the patient via the adhesivelayer comprises removing a release liner covering the adhesive layer. 5.The method of claim 1, wherein the liquid adhesive comprisescyanoacrylate.